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-   -   New Type of Fatigue Discovered in Silicon (https://www.madshrimps.be/vbulletin/f22/new-type-fatigue-discovered-silicon-40072/)

jmke 4th December 2007 14:47

New Type of Fatigue Discovered in Silicon
 
Researchers at the National Institute of Standards and Technology (NIST) have discovered a phenomenon long thought not to exist. They have demonstrated a mechanical fatigue process that eventually leads to cracks and breakdown in bulk silicon crystals. Silicon — the backbone of the semiconductor industry — has long been believed to be immune to fatigue from cyclic stresses because of the nature of its crystal structure and chemical bonds. However, NIST examination of the silicon used in microscopic systems that incorporate tiny gears, vibrating reeds and other mechanical features reveals stress-induced cracks that can lead to failure. This has important implications for the design of new silicon-based micro-electromechanical system (MEMS) devices that have been proposed for a wide variety of uses.

http://hardware.slashdot.org/article.../11/28/2046256

Kougar 4th December 2007 18:09

Note to self: don't drop anymore CPUs.

Jaco 4th December 2007 22:12

good excuse for those buying new cpu's every 6 months :naughty:

we don't want 'the fatigue' to kick in ;-D


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